networkmanager wifi enabled not remembered

I have OS 13.1 64 bit with xfce (& gnome where necessary) using network manager with the NM panel plugin.

At one site I disabled wifi as they were having a problem (repeated disconnection). Since then WiFi in NM has defaulted to not-enabled so I have to re-enable it on every re-boot & every suspend-resume.

How can I reset this so WiFi defaults to enabled on startup / resume?

Thanks
David

p.s. reported as a bug: https://bugzilla.opensuse.org/show_bug.cgi?id=903643